linux-kernel - Re: Get rid of cpuinit?

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Message-ID: <20130522210447.GA26123@merkur.ravnborg.org>
Date:	Wed, 22 May 2013 23:04:47 +0200
From:	Sam Ravnborg <sam@...nborg.org>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	linux-arch <linux-arch@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Ingo Molnar <mingo@...nel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Greg KH <greg@...ah.com>
Subject: Re: Get rid of cpuinit?

On Mon, May 20, 2013 at 03:35:43PM -0700, H. Peter Anvin wrote:
> We have gotten rid of devinit markup.  A recent patch of Linus' makes me
> wonder if we similarly should get rid of cpuinit markup?
> 
> Just as with devices, the CPU hotplug machinery has been leveraged to
> support a number of pieces of functionality such as suspend, which means
> that on anything but the most embedded systems this functionality is
> likely needed anyway.

If you grep for CPU_HOTPLUG in various defconfig files you will see that
it is only set in a few of these files (at least in arm/configs/).
I did not check it CPU_HOTPLUG would be set when
you actually used the config - but at least we need to pay attention
to the current usage.

	Sam
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